Kimble Main Relief Valve

Kimble Main Relief Valve

This is a main hydraulic system relief valve for Kimble rear discharge concrete mixers. Manufactured by Sun Hydraulics, this RDBA series cartridge valve is a critical safety component that prevents damage to the hydraulic system by opening and diverting fluid to the tank when pressure exceeds its set limit. Its direct-acting, poppet-type design ensures a fast, reliable response to pressure transients. This valve is a necessary replacement part for routine maintenance or to fix issues like pressure creep, failure to hold pressure, or system overheating caused by a malfunctioning valve.

Key Features

• Direct-acting, poppet-type design for fast (2 ms typical) response time.
• Protects main hydraulic circuit from over-pressurization.
• Sun Hydraulics 'floating style' construction minimizes binding from installation torque.
• Designed for quiet operation, dirt tolerance, and near-zero leak performance.
• Used as an OEM component in Kimble rear discharge mixer hydraulic systems.

Fits These Mixers

McNeilus, Con-Tech, CBMW, Kimble. This valve is used as the main hydraulic relief valve in Kimble rear discharge concrete mixers, including the K2100 and K2200 series. The specific pressure setting may vary by application.

All measurements ± standard manufacturing tolerance.

Product descriptions are drafted with automated tools and reviewed as time allows. While we work to keep them accurate, specifications and fitment should be confirmed with a Customer Service specialist at 800-745-3414 before purchase. Found an error? Let us know and we’ll fix it.